760 FNUS53 KDTX 010747 FWFDTX Fire Weather Planning Forecast for Southeast Michigan National Weather Service Detroit/Pontiac MI 347 AM EDT Tue Sep 1 2020 .DISCUSSION...Showers and thunderstorms will become likely this afteroon and tonight. Minimum RH values this afternoon are expected to range in the 60 percent range. Conditions will dry out for Wednesday as a weak high pressure takes hold. Breezy conditions develop for Thursday ahead of the next cold front. MIZ047-048-053-060-061-011915- Midland-Bay-Saginaw-Shiawassee-Genesee- Including the cities of Midland-Bay City-Saginaw-Owosso-Flint 347 AM EDT Tue Sep 1 2020 .TODAY... Sky/weather.........Partly cloudy (40-50 percent) until 6 am, then mostly cloudy (60-70 percent). Slight chance of showers after 3 am. Slight chance of thunderstorms after noon. Chance of precipitation 20 percent. Max temperature.....73-78. 24 hr trend......1 degree cooler. Min humidity........56-66 percent. 24 hr trend......19 percent wetter. 20-foot winds.......Southwest around 5 mph becoming west early in the morning, then becoming north in the late morning and early afternoon becoming northwest early in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. Mixing height.......5620-6120 ft agl. Transport winds.....Southwest 0 to 5 mph increasing to around 10 mph early in the afternoon. Smoke dispersal.....Excellent (950). Pcpn amount.........0.11-0.25 in. .TONIGHT... Sky/weather.........Mostly cloudy (65-75 percent). Chance of thunderstorms until midnight. Showers likely. Slight chance of thunderstorms after midnight. Chance of precipitation 60 percent. Min temperature.....58-63. 24 hr trend......2 degrees warmer. Max humidity........98 percent. 24 hr trend......Unchanged. 20-foot winds.......South around 5 mph early in the evening becoming light, then becoming southwest around 5 mph after midnight. Haines Index........3 or very low potential for large plume dominated fire growth. Mixing height.......100-300 ft agl. Transport winds.....South around 5 mph becoming northeast in the late evening and early morning, then becoming southeast after midnight. Smoke dispersal.....Poor (0). Pcpn amount.........0.26-0.50 in. .WEDNESDAY... Sky/weather.........Partly cloudy (40-50 percent). Chance of rain showers until 9 am. Chance of precipitation 40 percent. Max temperature.....76-81. 24 hr trend......2 degrees warmer. Min humidity........43-52 percent. 24 hr trend......15 percent drier. 20-foot winds.......West 5 to 10 mph. Haines Index........3 or very low potential for large plume dominated fire growth. Mixing height.......6220-6720 ft agl. Transport winds.....West around 10 mph becoming northwest in the late morning and early afternoon, then becoming west early in the afternoon. Smoke dispersal.....Excellent (1330). Pcpn amount.........0.06-0.10 in. $$ MIZ049-054-055-062-011915- Huron-Tuscola-Sanilac-Lapeer- Including the cities of Bad Axe-Caro-Sandusky-Lapeer 347 AM EDT Tue Sep 1 2020 .TODAY... Sky/weather.........Partly cloudy (30-40 percent) until 6 am, then mostly cloudy (60-70 percent). Slight chance of showers after 6 am. Slight chance of thunderstorms after noon. Chance of precipitation 20 percent. Max temperature.....73-78. 24 hr trend......2 degrees warmer. Min humidity........62-72 percent. 24 hr trend......16 percent wetter. 20-foot winds.......South around 5 mph after midnight becoming light, then becoming west around 5 mph in the late morning and early afternoon becoming northwest. Haines Index........3 or very low potential for large plume dominated fire growth. Mixing height.......6150-6650 ft agl. Transport winds.....Southwest 5 to 10 mph. Smoke dispersal.....Excellent (1130). Pcpn amount.........0.11-0.25 in. .TONIGHT... Sky/weather.........Mostly cloudy (70-80 percent). Showers likely and chance of thunderstorms until 3 am, then chance of showers and slight chance of thunderstorms. Chance of precipitation 60 percent. Min temperature.....60-65. 24 hr trend......3 degrees warmer. Max humidity........99 percent. 24 hr trend......Unchanged. 20-foot winds.......Northeast around 5 mph early in the evening becoming light, then becoming south around 5 mph after midnight. Haines Index........3 or very low potential for large plume dominated fire growth. Mixing height.......300-500 ft agl. Transport winds.....Northeast around 10 mph becoming southeast after midnight. Smoke dispersal.....Poor (0). Pcpn amount.........0.26-0.50 in. .WEDNESDAY... Sky/weather.........Partly cloudy (40-50 percent). Chance of showers until 9 am. Chance of precipitation 40 percent. Max temperature.....76-81. 24 hr trend......Unchanged. Min humidity........49-59 percent. 24 hr trend......14 percent drier. 20-foot winds.......West 5 to 10 mph. Haines Index........3 or very low potential for large plume dominated fire growth. Mixing height.......3450-3950 ft agl. Transport winds.....West around 10 mph becoming north in the late morning and early afternoon, then becoming west early in the afternoon. Smoke dispersal.....Good (560). Pcpn amount.........0.06-0.10 in. $$ MIZ063-068>070-075-076-082-083-011915- St Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe- Including the cities of Port Huron-Howell-Pontiac-Warren-Ann Arbor-Detroit-Adrian-Monroe 347 AM EDT Tue Sep 1 2020 .TODAY... Sky/weather.........Partly cloudy (40-50 percent) until noon, then mostly cloudy (70-80 percent). Chance of showers and thunderstorms after noon. Chance of precipitation 30 percent. Max temperature.....78-83. 24 hr trend......2 degrees warmer. Min humidity........59-66 percent. 24 hr trend......10 percent wetter. 20-foot winds.......Light winds becoming southwest 5 to 10 mph. Haines Index........3 or very low potential for large plume dominated fire growth. Mixing height.......6290-6790 ft agl. Transport winds.....Southwest 0 to 5 mph increasing to 10 to 15 mph in the late morning and afternoon. Smoke dispersal.....Excellent (1000). Pcpn amount.........0.11-0.25 in. .TONIGHT... Sky/weather.........Mostly cloudy (75-85 percent). Chance of thunderstorms until 3 am. Chance of showers. Slight chance of thunderstorms after 3 am. Chance of precipitation 50 percent. Min temperature.....62-67. 24 hr trend......5 degrees warmer. Max humidity........99 percent. 24 hr trend......Unchanged. 20-foot winds.......West around 5 mph early in the evening becoming light, then becoming southwest around 5 mph after midnight. Haines Index........3 or very low potential for large plume dominated fire growth. Mixing height.......100-300 ft agl. Transport winds.....Southwest 5 to 10 mph. Smoke dispersal.....Poor (0). Pcpn amount.........0.51-0.75 in. .WEDNESDAY... Sky/weather.........Partly cloudy (50-60 percent). Chance of showers until 3 pm. Chance of precipitation 40 percent. Max temperature.....Around 81. 24 hr trend......1 degree warmer. Min humidity........53-60 percent. 24 hr trend......4 percent drier. 20-foot winds.......West 5 to 10 mph. Haines Index........3 or very low potential for large plume dominated fire growth. Mixing height.......5180-5680 ft agl. Transport winds.....Southwest around 10 mph becoming west around 20 mph in the late morning and afternoon. Smoke dispersal.....Excellent (970). Pcpn amount.........0.06-0.10 in. $$ .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Lows in the upper 50s. Highs in the lower 80s. Southwest winds around 10 mph. .FRIDAY...Not as warm. Mostly clear. Lows in the mid 50s. Highs in the lower 70s. West winds around 10 mph. .SATURDAY...Mostly clear. Lows in the lower 50s. Highs in the mid 70s. West winds around 5 mph. .SUNDAY...Mostly clear. Lows in the mid 50s. Highs in the upper 70s. .LABOR DAY...Partly cloudy. Chance of showers. Lows in the mid 50s. Highs in the lower 70s. $$ CB